Just testing:

Using finales 0,1,2,3

These can all be covered with 8 splits

Wait for one to show and then bet for a repeat.

If won then retrack
If lost then retrack

Progression is for 16 numbers

+1/-1 should be good choice

Example:

35
12 trigger, now bet all finales 0,1,2,3
14 lost, retrack
28
16
1  trigger,
23 win

Done a few hundred spins, nearly all wins come in within 6 losses
Most by 3

You could try worse...

BW